X-Git-Url: https://sigrok.org/gitweb/?p=pulseview.git;a=blobdiff_plain;f=pv%2Fview%2Fanalogsignal.cpp;h=41f46dfcc75b414e47fbf8dd6bf47d2d7ff8502a;hp=0d38314dfa270e95cdbcb906a01b4f0d025f5004;hb=26a883ede0bcf68d087eda5dd2082890d36c7aef;hpb=3a21afa6a5dfc06c17f127960bb0038fd322f213 diff --git a/pv/view/analogsignal.cpp b/pv/view/analogsignal.cpp index 0d38314d..41f46dfc 100644 --- a/pv/view/analogsignal.cpp +++ b/pv/view/analogsignal.cpp @@ -14,8 +14,7 @@ * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * along with this program; if not, see . */ #include @@ -48,7 +47,8 @@ using std::shared_ptr; using std::deque; namespace pv { -namespace view { +namespace views { +namespace TraceView { const QColor AnalogSignal::SignalColours[4] = { QColor(0xC4, 0xA0, 0x00), // Yellow @@ -240,26 +240,25 @@ void AnalogSignal::paint_trace(QPainter &p, int y, int left, const int64_t start, const int64_t end, const double pixels_offset, const double samples_per_pixel) { - const int64_t sample_count = end - start; - - const float *const samples = segment->get_samples(start, end); - assert(samples); - p.setPen(base_->colour()); - QPointF *points = new QPointF[sample_count]; + QPointF *points = new QPointF[end - start]; QPointF *point = points; + pv::data::SegmentAnalogDataIterator* it = + segment->begin_sample_iteration(start); + for (int64_t sample = start; sample != end; sample++) { const float x = (sample / samples_per_pixel - pixels_offset) + left; - *point++ = QPointF(x, - y - samples[sample - start] * scale_); + + *point++ = QPointF(x, y - *((float*)it->value) * scale_); + segment->continue_sample_iteration(it, 1); } + segment->end_sample_iteration(it); p.drawPolyline(points, point - points); - delete[] samples; delete[] points; } @@ -385,5 +384,6 @@ void AnalogSignal::on_resolution_changed(int index) owner_->row_item_appearance_changed(false, true); } -} // namespace view +} // namespace TraceView +} // namespace views } // namespace pv